Fix an error in tramp-vc-file-name-handler

* lisp/net/tramp.el (tramp-accept-process-output, tramp-send-string):
* lisp/net/tramp-adb.el (tramp-adb-handle-make-process):
* lisp/net/tramp-sh.el (tramp-do-copy-or-rename-file-out-of-band)
(tramp-sh-handle-make-process):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-directory)
(tramp-smb-handle-file-acl, tramp-smb-handle-process-file)
(tramp-smb-handle-set-file-acl)
(tramp-smb-handle-start-file-process): Do not suppress timers.

* lisp/net/tramp-sh.el (tramp-vc-file-name-handler): Check, that
`tramp-file-name-for-operation' returns a proper Tramp file.

lisp/net/tramp-adb.el

@@ -975,9 +975,7 @@ PRESERVE-UID-GID and PRESERVE-EXTENDED-ATTRIBUTES are completely ignored."
 		(or (null program) tramp-process-connection-type))
 	       (bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
 	       (name1 name)
-	       (i 0)
-	       ;; We do not want to run timers.
-	       timer-list timer-idle-list)
+	       (i 0))
 
 	  (while (get-process name1)
 	    ;; NAME must be unique as process name.

lisp/net/tramp-sh.el

@@ -2417,9 +2417,7 @@ The method used must be an out-of-band method."
 	      ;; The default directory must be remote.
 	      (let ((default-directory
 		      (file-name-directory (if t1 filename newname)))
-		    (process-environment (copy-sequence process-environment))
-		    ;; We do not want to run timers.
-		    timer-list timer-idle-list)
+		    (process-environment (copy-sequence process-environment)))
 		;; Set the transfer process properties.
 		(tramp-set-connection-property
 		 v "process-name" (buffer-name (current-buffer)))
@@ -2878,8 +2876,6 @@ the result will be a local, non-Tramp, file name."
 	       ;; has been started several times in `eshell' and
 	       ;; friends.
 	       tramp-current-connection
-	       ;; We do not want to run timers.
-	       timer-list timer-idle-list
 	       p)
 
 	  (while (get-process name1)
@@ -3550,24 +3546,29 @@ Fall back to normal file name handler if no Tramp handler exists."
 	   (tramp-replace-environment-variables
 	    (apply #'tramp-file-name-for-operation operation args)))
 	  (fn (assoc operation tramp-sh-file-name-handler-alist)))
-      (with-parsed-tramp-file-name filename nil
-	(cond
-	 ;; That's what we want: file names, for which checks are
-	 ;; applied.  We assume that VC uses only `file-exists-p' and
-	 ;; `file-readable-p' checks; otherwise we must extend the
-	 ;; list.  We do not perform any action, but return nil, in
-	 ;; order to keep `vc-registered' running.
-	 ((and fn (memq operation '(file-exists-p file-readable-p)))
-	  (add-to-list 'tramp-vc-registered-file-names localname 'append)
-	  nil)
-	 ;; `process-file' and `start-file-process' shall be ignored.
-	 ((and fn (eq operation 'process-file) 0))
-	 ((and fn (eq operation 'start-file-process) nil))
-	 ;; Tramp file name handlers like `expand-file-name'.  They
-	 ;; must still work.
-	 (fn (save-match-data (apply (cdr fn) args)))
-	 ;; Default file name handlers, we don't care.
-	 (t (tramp-run-real-handler operation args)))))))
+      (if (tramp-tramp-file-p filename)
+	  (with-parsed-tramp-file-name filename nil
+	    (cond
+	     ;; That's what we want: file names, for which checks are
+	     ;; applied.  We assume that VC uses only `file-exists-p'
+	     ;; and `file-readable-p' checks; otherwise we must extend
+	     ;; the list.  We do not perform any action, but return
+	     ;; nil, in order to keep `vc-registered' running.
+	     ((and fn (memq operation '(file-exists-p file-readable-p)))
+	      (add-to-list 'tramp-vc-registered-file-names localname 'append)
+	      nil)
+	     ;; `process-file' and `start-file-process' shall be ignored.
+	     ((and fn (eq operation 'process-file) 0))
+	     ((and fn (eq operation 'start-file-process) nil))
+	     ;; Tramp file name handlers like `expand-file-name'.  They
+	     ;; must still work.
+	     (fn (save-match-data (apply (cdr fn) args)))
+	     ;; Default file name handlers, we don't care.
+	     (t (tramp-run-real-handler operation args))))
+
+	;; When `tramp-mode' is not enabled, or the file name is
+	;; quoted, we don't do anything.
+	(tramp-run-real-handler operation args)))))
 
 (defun tramp-sh-handle-file-notify-add-watch (file-name flags _callback)
   "Like `file-notify-add-watch' for Tramp files."

lisp/net/tramp-smb.el

@@ -452,9 +452,7 @@ pass to the OPERATION."
 			       (expand-file-name
 				tramp-temp-name-prefix
 				(tramp-compat-temporary-file-directory))))
-		   (args      (list (concat "//" host "/" share) "-E"))
-		   ;; We do not want to run timers.
-		   timer-list timer-idle-list)
+		   (args      (list (concat "//" host "/" share) "-E")))
 
 	      (if (not (zerop (length user)))
 		  (setq args (append args (list "-U" user)))
@@ -742,9 +740,7 @@ PRESERVE-UID-GID and PRESERVE-EXTENDED-ATTRIBUTES are completely ignored."
 	  (let* ((share     (tramp-smb-get-share v))
 		 (localname (replace-regexp-in-string
 			     "\\\\" "/" (tramp-smb-get-localname v)))
-		 (args      (list (concat "//" host "/" share) "-E"))
-		 ;; We do not want to run timers.
-		 timer-list timer-idle-list)
+		 (args      (list (concat "//" host "/" share) "-E")))
 
 	    (if (not (zerop (length user)))
 		(setq args (append args (list "-U" user)))
@@ -1218,8 +1214,6 @@ component is used as the target of the symlink."
     (let* ((name (file-name-nondirectory program))
 	   (name1 name)
 	   (i 0)
-	   ;; We do not want to run timers.
-	   timer-list timer-idle-list
 	   input tmpinput outbuf command ret)
 
       ;; Determine input.
@@ -1395,9 +1389,7 @@ component is used as the target of the symlink."
 			   "\\\\" "/" (tramp-smb-get-localname v)))
 	       (args      (list (concat "//" host "/" share) "-E" "-S"
 				(replace-regexp-in-string
-				 "\n" "," acl-string)))
-	       ;; We do not want to run timers.
-	       timer-list timer-idle-list)
+				 "\n" "," acl-string))))
 
 	  (if (not (zerop (length user)))
 	      (setq args (append args (list "-U" user)))
@@ -1477,9 +1469,7 @@ component is used as the target of the symlink."
 	   (command (mapconcat #'identity (cons program args) " "))
 	   (bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
 	   (name1 name)
-	   (i 0)
-	   ;; We do not want to run timers.
-	   timer-list timer-idle-list)
+	   (i 0))
       (unwind-protect
 	  (save-excursion
 	    (save-restriction

lisp/net/tramp.el

@@ -3640,7 +3640,8 @@ support symbolic links."
 
     (if (and (not current-buffer-p) (integerp asynchronous))
 	(let ((tramp-remote-process-environment
-	       ;; `async-shell-command-width' has been introduced with Emacs 27.1.
+	       ;; `async-shell-command-width' has been introduced with
+	       ;; Emacs 27.1.
 	       (if (natnump (bound-and-true-p async-shell-command-width))
 		   (cons (format "COLUMNS=%d"
 				 (bound-and-true-p async-shell-command-width))
@@ -4087,15 +4088,7 @@ for process communication also."
   (with-current-buffer (process-buffer proc)
     (let ((inhibit-read-only t)
 	  last-coding-system-used
-	  ;; We do not want to run timers.
-	  (tl timer-list)
-          (stimers (with-timeout-suspend))
-	  timer-list timer-idle-list
 	  result)
-      ;; Enable our progress reporter.
-      (dolist (timer tl)
-	(if (eq (timer--function timer) #'tramp-progress-reporter-update)
-            (push timer timer-list)))
       ;; JUST-THIS-ONE is set due to Bug#12145.
       (tramp-message
        proc 10 "%s %s %s %s\n%s"
@@ -4103,8 +4096,6 @@ for process communication also."
        (with-local-quit
 	 (setq result (accept-process-output proc timeout nil t)))
        (buffer-string))
-      ;; Reenable the timers.
-      (with-timeout-unsuspend stimers)
       result)))
 
 (defun tramp-check-for-regexp (proc regexp)
@@ -4185,20 +4176,12 @@ The STRING is expected to use Unix line-endings, but the lines sent to
 the remote host use line-endings as defined in the variable
 `tramp-rsh-end-of-line'.  The communication buffer is erased before sending."
   (let* ((p (tramp-get-connection-process vec))
-	 (chunksize (tramp-get-connection-property p "chunksize" nil))
-	 ;; We do not want to run timers.
-	 (tl timer-list)
-         (stimers (with-timeout-suspend))
-	 timer-list timer-idle-list)
+	 (chunksize (tramp-get-connection-property p "chunksize" nil)))
     (unless p
       (tramp-error
        vec 'file-error "Can't send string to remote host -- not logged in"))
     (tramp-set-connection-property p "last-cmd-time" (current-time))
     (tramp-message vec 10 "%s" string)
-    ;; Enable our progress reporter.
-    (dolist (timer tl)
-      (if (eq (timer--function timer) #'tramp-progress-reporter-update)
-          (push timer timer-list)))
     (with-current-buffer (tramp-get-connection-buffer vec)
       ;; Clean up the buffer.  We cannot call `erase-buffer' because
       ;; narrowing might be in effect.
@@ -4222,9 +4205,7 @@ the remote host use line-endings as defined in the variable
 		(process-send-string
 		 p (substring string pos (min (+ pos chunksize) end)))
 		(setq pos (+ pos chunksize))))
-	  (process-send-string p string)))
-      ;; Reenable the timers.
-      (with-timeout-unsuspend stimers))))
+	  (process-send-string p string))))))
 
 (defun tramp-process-sentinel (proc event)
   "Flush file caches and remove shell prompt."